Improvement in couplings for shafting



anni salie.

CHARLES BEAN, vor rRovIDENcE,-EH0DE isLAND, AssIeNon TOALBERT.

E. ALLEN, 0E SAME PLAGE.

` Leners Patent No. 110,422, dated Deeember 27, i870.

IMPROVEMENT lN COUPLINGS FOR SHAFTING.

The Schedule referred to in these Letters Patent and making part of the san-ie.

To all whom 'it may con-cern:

Be it known that I, CHARLES BEAN, of the city and county of Providence and State of Rhode Island, have invented a new and improved Coupling for Shafting; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing making pmt oi' this specification, in which- Figure l is a perspective view of my said coupling, showing the two halves separated;

Figure 2 is an end view oi' the same locked together upon the shaft and -1"igure' 3 is a perspective view of the two keys by which the locking of the coupling is accomplished.

Similar letters of reference indicate like parts in all the ligures. y Q

My invention consstsof a metallic sleeve formed in two halves,y which are united upon the two ends of shaftiug by an angular joint so devised that, by means of -itwo keys consisting of rectangular tapering pieces of metal, which are driven into two correspondingly- 'shaped apertures extending lengthwise of the said sleeve between twoangles of said joint, the whole is locked securely together upon the shaft.

In the drawing- B B are the two halves of the sleeve, with a cylini dricalhole, I, through the center, for the reception of the two ends of the shafts to be coupled, andprovided with a key-seat or spline, an, for the key, which prevents the coupling from turning on the shaft.

rIhe two halves of the coupling are united in an angular joint, s, extending in a zig-zag course through its center.

In connection with which construction the tapering apertures D D are formed', in which are fitted two tapering keys, G G, which, on being driven from opposite ends of the coupling snugly into the said ap- `ertures, exe'rt apressure between the surfaces of the projecting lips f f, and by so doing not only prevent the two parts 6i' the coupling from being-separated,- but cause the saine to gripe the shaft forcibly and to unite the two halves with such accuracy and exactness that the coupling will always preserve the same relation to the shaft, no matter how frequently it may be removed and replaced, the surface ot' the coupling always turning true and in line with `the shaft.

The keys, after they are properly set up, are secured from loosening `by means of'l a nut, d, screwed upon the smaller end of' each, which protrudes from the 'ask shown and described.

In'testiniony whereof` I have hereunto subscribed my name this 27th' day of February, A. D. 1869.

CHARLES BEAN,

Witnesses:

ISAAC A. BROWNELL, WILLIAM BROWNELL. 

